Fix non-ASCII letter in Statistics.sendActiveDeviceListEvent() method

Call addNewFabric only if callstats is initialized, there are certain situations when the init callback for some reason is slow and we call addNewFabric before callstats is initialized and we skip the peerconnection reported so we are missing the stats. Reports data only if callstats had initialized, adds caching of associateMstWithUserID calls.

via presence (via special items with a tag name beginning with
"jitsi_participant_). An events is fired when the value of a property changes.

You can call static Statistics methods which will internally handle callstats instances to send stats. Drops handlers and JitsiMeetJS references.

Logs versions of components and library version. Logs shard and region if available.

Since React Native doesn't have HTML elements, depend on HTML element
properties and don't necessarily depend on them being properties on
actual HTML elements but rather assume plain JavaScript objects.

The react-native-webrtc implementation that we use on React Native (at
the time of this writing) provides a MediaStream (class) which:

- has no standard constructors but rather has a non-standard
constructor which requires a single argument that represents the id of
the MediaStream instance to initialize, and

- has an id value of type number rather than the standard string.